IEC 62657-2:2017, – specifies the fundamental assumptions, concepts, parameters, and procedures for wireless communication coexistence; – specifies coexistence parameters and how they are used in an application requiring wireless coexistence; – provides guidelines, requirements, and best practices for wireless communication’s availability and performance in an industrial automation plant; it covers the life?cycle of wireless communication coexistence; – helps the work of all persons involved with the relevant responsibilities to cope with the critical aspects at each phase of life-cycle of the wireless communication coexistence management in an industrial automation plant. Life-cycle aspects include: planning, design, installation, implementation, operation, maintenance, administration and training; – provides a common point of reference for wireless communication coexistence for industrial automation sites as a homogeneous guideline to help the users assess and gauge their plant efforts; – deals with the operational aspects of wireless communication coexistence regarding both the static human/tool-organization and the dynamic network self-organization. This second edition cancels and replaces the first edition published in 2013. This edition constitutes a technical revision. This second edition includes the following significant technical changes with respect to the previous edition: a) update of the normative references, terms, definitions, symbols and abbreviations; b) addition of terms; c) checking of the life-cycle terms of this document versus the terms used in IEC 62890: and addition of explanations; d) addition and modification of text to make the text more readable; e) alignment of some definitions and specifications of coexistence parameters in order to facilitate their future inclusion in the IEC Common Data Dictionary (IEC CDD) maintained by the IEC.

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PDF Pages	PDF Title
2	National foreword
6	English CONTENTS
10	FOREWORD
12	INTRODUCTION
14	1 Scope 2 Normative references 3 Terms, definitions, abbreviated terms and conventions 3.1 Terms and definitions
25	3.2 Abbreviated terms
26	3.3 Conventions 4 Coexistence concept in industrial automation 4.1 Overview
28	4.2 Objective Tables Table 1 – Example of a classification of application communication requirements
29	Figures Figure 1 – Issues of consideration
30	4.3 Necessity to implement a coexistence management Figure 2 – Applications using frequency spectrum
32	4.4 Interference potential
33	4.5 Ancillary conditions
34	4.6 Requirements to wireless devices for support of coexistence management 4.7 Concepts 4.7.1 Manual coexistence management Figure 3 – Progression of expense to achieve coexistence corresponding to the application classes
35	4.7.2 Automated non-collaborative metrics-based coexistence management 4.7.3 Automated collaborative metrics-based coexistence management
36	4.8 Best practices to achieve coexistence
37	Figure 4 – Separation of wireless systems according to frequency and time
38	4.9 Coexistence conceptual model
39	Figure 5 – Coexistence conceptual model
40	4.10 Coexistence management and selection of a wireless solution Figure 6 – Flow chart of the coexistence conceptual model
41	Figure 7 – Selection of a wireless systemin the coexistence management process
42	4.11 Coexistence management system 5 Coexistence management parameters 5.1 General 5.1.1 Definition and usage of parameters 5.1.2 Physical link 5.2 Adjacent channel selectivity
43	5.3 Antenna gain 5.4 Antenna radiation pattern 5.5 Antenna type 5.6 Availability
44	5.7 Bandwidth 5.8 Bit rate of physical link 5.9 Centre frequency 5.10 Characteristic of the area of operation 5.11 Communication load
45	Figure 8 – Communication load in case of two wireless devices
46	5.12 Cut-off frequency Figure 9 – Communication load in the case of several wireless devices
47	5.13 Data throughput 5.14 Device type information 5.15 Distance between wireless devices Figure 10 – Cut-off frequencies derived from maximum power level
48	5.16 Duty cycle Figure 11 – Distance of the wireless devices
49	Figure 12 – Duty cycle Table 2 – Application profile dependent observation time values
50	5.17 Dwell time Figure 13 – Maximum dwell time
51	5.18 Equivalent isotropic radiated power 5.19 Equivalent radiated power 5.20 Frequency band 5.21 Frequency channel
52	5.22 Frequency hopping procedure 5.23 Future expansion plan 5.24 Geographical dimension of the plant 5.25 Infrastructure device 5.26 Initiation of data transmission Table 3 – Parameter options for frequency channel
53	5.27 ISM application 5.28 Length of user data per transfer interval 5.29 Limitation from neighbours of the plant 5.30 Maximum number of retransmissions 5.31 Mechanism for adaptivity
54	5.32 Medium access control mechanism 5.33 Modulation 5.34 Natural environmental condition 5.35 Network topology
55	5.36 Packet loss rate 5.37 Position of wireless devices 5.38 Power spectral density
56	5.39 Purpose of the automation application 5.40 Receiver blocking 5.41 Receiver input level Figure 14 – Power spectral density of an IEEE 802.15.4 system
57	5.42 Receiver sensitivity 5.43 Regional radio regulations 5.44 Relative movement 5.45 Response time
58	5.46 Security level 5.47 Spatial coverage of the wireless communication network 5.48 Spurious response 5.49 Total radiated power 5.50 Transfer interval
59	5.51 Transmission gap Figure 15 – Communication cycle, application event interval and machine cycle
60	5.52 Transmission time Figure 16 – Minimum transmission gap
61	Figure 17 – Example of the density functions of transmission time
62	Figure 18 – Example of the distribution functions of transmission time
63	5.53 Transmitter output power 5.54 Transmitter sequence Figure 19 – Transmitter sequence
64	5.55 Transmitter spectral mask 5.56 Update time Figure 20 – Transmitter spectral mask of an IEEE 802.15.4 system
65	5.57 Wireless device density 5.58 Wireless communication network density Figure 21 – Example of distribution functions of the update time
66	5.59 Wireless technology or standard 6 Coexistence management information structures 6.1 General
67	6.2 General plant characteristic Figure 22 – Principle for use of coexistence parameters Figure 23 – Parameters to describe the general plant characteristic
68	6.3 Application communication requirements 6.3.1 Overview Table 4 – List of parameters used to describe the general plant characteristic
69	6.3.2 Requirements influencing the characteristic of wireless solutions Figure 24 – Parameters to describe application communication requirements Table 5 – List of parameters used to describe the requirements influencing the characteristic of wireless solutions
70	6.3.3 Performance requirements 6.4 Characteristic of wireless system type and wireless device type 6.4.1 Overview Figure 25 – Parameters to describe wireless network type and device type Table 6 – List of parameters used to describe performance requirements
71	6.4.2 Wireless system type 6.4.3 Wireless device type Table 7 – List of parameters used to describe the wireless system type
72	Figure 26 – Power spectral density and transmitterspectral mask of a DECT system Figure 27 – Medium utilization in time and frequency of a DECT system
73	Table 8 – List of parameters used to describe the transmitter of a wireless device type Table 9 – List of parameters used to describe the receiver of a wireless device type
74	6.5 Characteristic of wireless solution 6.5.1 Overview 6.5.2 Characteristic of a wireless network solution Figure 28 – Parameters to describe a wireless solution Table 10 – List of parameters used to describe a wireless network solution
75	6.5.3 Characteristic of a wireless device solution Table 11 – List of parameters used to describe the transmitterof a wireless device solution
76	7 Coexistence management process 7.1 General 7.1.1 Overview 7.1.2 Documentation Table 12 – List of parameters used to describe the receiver of a wireless device solution
79	7.1.3 Suitable documentation method Figure 29 – Relations of the documents in a coexistence management system specification
80	7.1.4 Application of tools 7.2 Establishment of a coexistence management system 7.2.1 Nomination of a coexistence manager
81	7.2.2 Responsibility of a coexistence manager 7.2.3 Support by radio experts 7.2.4 Training
82	7.3 Maintaining coexistence management system 7.4 Phases of a coexistence management process 7.4.1 Investigation phase
85	7.4.2 Planning phase
86	Figure 30 – Planning of a wireless system in thecoexistence management process
87	7.4.3 Implementation phase
88	7.4.4 Operation phase
89	Figure 31 – Implementation and operation of a wireless systemin the coexistence management process
90	8 Coexistence parameter templates Table 13 – Template used to describe the general plant characteristic
91	Table 14 – Template used to describe the application communication requirements Table 15 – Template used to describe the wireless system type
92	Table 16 – Template used to describe a wireless device type Table 17 – Template used to describe the wireless network solution
93	Table 18 – Template used to describe a wireless device solution Table 19 – Template used to describe an ISM application
94	Bibliography

Published By	Publication Date	Number of Pages
BSI	2017	96


PDF Format	Searchable	Printable	Preview Now

Status	Withdrawn
Title	Industrial communication networks. Wireless communication networks – Coexistence management
Replaces	BS EN 62657-2:2015
Publisher	BSI
Committee	GEL/65/3
Pages	96
Publication Date	2017-08-08
Withdrawn Date	2019-12-05
ISBN	978 0 580 88646 1
Standard Number	BS EN 62657-2:2017
Identical National Standard Of	IEC 62657-2:2017, EN 62657-2:2017
Descriptors	Bus networks, Process control, Communication networks, Open systems interconnection, Interfaces (data processing), Computerized control, Data transfer, Data processing, Computer networks, Industrial, Data transmission, Data link layer (OSI), Computer applications, Fieldbus, Automatic control systems, Design
ICS Codes	35.100 - Open systems interconnection (OSI)

BS EN 62657-2:2017

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BS EN 62657-2:2017+A1:2019